In college I took a great class called "Educational Media" and it was one of the first places that introduced me to using a digital camera, using photoshop, making movies, basic html and stuff like that. My final exam included making a power point presentation about anything I wanted -- what could be better than that? Since taking that class I have been interested in photography and using tools to manipulate images. In the past I have used Flickr to "Warholize" photos as gifts or created celebrity mash-up photos by using photoshop to put one person's head on another's body to make funny cards and the like so this area isn't completely foreign to me.
I had never heard of Mappr, but found it to be a pretty neat idea. I was disappointed that some of the towns and landmarks I have lived in or visited were absent or had only one or two photos attached, but that only makes me want to upload my own photos. My biggest complaint is that it took a very long time for this site to load images, I don't know if that's because the network here is slow or what, but it took several minutes to just load the most basic searches. Flickr Color Pickr was kinda cool because it allowed you some amazing photos - I made my search use really vibrant colors. Montagr was neat too, but I wasn't as impressed with that one because I guess I couldn't see myself using it.
I did use the Trading Card maker though and made one of our dog!